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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Yii\Event; |
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use Psr\Container\ContainerExceptionInterface; |
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use Psr\Container\ContainerInterface; |
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use ReflectionException; |
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use ReflectionMethod; |
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use function is_array; |
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use function is_callable; |
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use function is_string; |
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final class ListenerConfigurationChecker |
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{ |
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private ContainerInterface $container; |
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public function __construct(ContainerInterface $container) |
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{ |
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$this->container = $container; |
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} |
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/** |
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* Checks the given event configuration and throws an exception in some cases: |
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* - incorrect configuration format |
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* - incorrect listener format |
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* - listener is not a callable |
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* - listener is meant to be a method of an object which can't be instantiated |
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* |
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* @param array $configuration An array in format of [eventClassName => [listeners]] |
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* |
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* @psalm-suppress InvalidCatch |
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*/ |
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public function check(array $configuration): void |
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{ |
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foreach ($configuration as $eventName => $listeners) { |
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if (!is_string($eventName)) { |
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throw new InvalidEventConfigurationFormatException( |
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'Incorrect event listener format. Format with event name must be used.' |
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); |
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} |
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if (!is_iterable($listeners)) { |
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$type = gettype($listeners); |
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throw new InvalidEventConfigurationFormatException( |
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"Event listeners for $eventName must be an iterable, $type given." |
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); |
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} |
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foreach ($listeners as $listener) { |
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try { |
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if (!$this->isCallable($listener)) { |
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$type = gettype($listener); |
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throw new InvalidListenerConfigurationException( |
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"Listener must be a callable, $type given." |
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); |
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} |
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} catch (ContainerExceptionInterface $exception) { |
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throw new InvalidListenerConfigurationException( |
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'Could not instantiate event listener or listener class has invalid configuration.', |
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0, |
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$exception |
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); |
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} |
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} |
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} |
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} |
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private function isCallable($definition): bool |
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{ |
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if ( |
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is_array($definition) |
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&& array_keys($definition) === [0, 1] |
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&& is_string($definition[0]) |
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) { |
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if (class_exists($definition[0])) { |
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try { |
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$method = new ReflectionMethod($definition[0], $definition[1]); |
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if ($method->isStatic()) { |
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return true; |
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} |
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} catch (ReflectionException $exception) { |
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return false; |
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} |
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} |
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if ($this->container->has($definition[0])) { |
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$object = $this->container->get($definition[0]); |
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return method_exists($object, $definition[1]); |
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} |
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return false; |
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} |
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if (is_callable($definition)) { |
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return true; |
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} |
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if (is_string($definition) && $this->container->has($definition)) { |
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return is_callable($this->container->get($definition)); |
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} |
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return false; |
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} |
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} |
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yiisoft /
yii-event
